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package,module or ???

Posted on 2001-06-14
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Last Modified: 2010-03-05
Hi Experts,

My question is somewhat difficult to explain, but i'll try anyway :)

I'm working on this cgi application in Perl where an administrator can activate and deactivate certain parts of the application.
There's is a lot of different parts that can be activated or deactivated. My problem is i don't quite know how to implement this the most efficient way.

Should i write all the parts as functions in a package that would be required in the top of my cgi script? The problem with this, as I see it, is that my application would include all the code of the different parts even though they are not needed( if they are deactivated ).

Should I put all the parts in a module?
Should I put each part in it's own module?

Is it possible to somehow only include something in your code if it is needed? ie:
if( module1IsActivated) use module 1;

Or maybe i should do this in a completely different way that i haven't thought of :)

Any ideas appreciated!
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Question by:psogaa
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Accepted Solution

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marecs earned 200 total points
ID: 6190111
Including code only as it is needed sounds efficient enough. The require keyword only loads a module when it is encountered, rather than the use keyword that loads modules at compile time.

So
if (module1IsActivated) {
   require module1;
}

should work, whereas

if (module1IsActivated) {
   use module1;
}

will gain you nothing because the module is loaded at startup anyway.
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Author Comment

by:psogaa
ID: 6190231
Cool, thanks :)
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